More to the point; Orcs (multiple various settings), Orks (Warhammer 40,000), orks (Shadowrun), goblinoids, and all the various species and subspecies related to them are fictional. The orcs of S&K have yet to have their reproductive cycle, biological sexes, and genders fully established in this work of fiction (as far as I’m aware).

The heir needs to be born at the top of the mountain, but this arc is called “Child of the Forest”. I’m guessing that either the arc name is referring to an unmet adversary, or Sue’s mission is technically successful (parents reach top of mountain alive) but the child is born in the forest on the way.